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CVE-2021-37271

20
FAUCET Score

CVE-2021-37271 describes a Cross-Site Scripting (XSS) vulnerability in UEditor v1.4.3.3, a product from Baidu. This medium-severity flaw (CVSS 5.4) can be exploited with low attack complexity and requires user interaction, potentially allowing an attacker to steal user cookie information. While no active exploitation or public exploit code is reported, and community discussion is minimal, organizations using affected versions should be aware of this potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.3.3CPE matchmatch criteria
cpe:2.3:a:baidu:ueditor:1.4.3.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 70th percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cnvd.org.cn / flaw/show/3243916
Third Party Advisory
freebuf.com / vuls/269956.html
ExploitThird Party Advisory